package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApCollectionBehaviorService;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.CollectionBehaviorDTO;
import com.heima.model.behavior.pojos.ApCollection;
import com.heima.model.common.constants.article.HotArticleConstants;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.UpdateArticleMess;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApCollectionBehaviorServiceImpl implements ApCollectionBehaviorService {
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    RabbitTemplate rabbitTemplate;

    /**
     * 收藏 取消收藏
     * @param dto
     * @return
     */
    @Override
    public ResponseResult collectBehavior(CollectionBehaviorDTO dto) {

       //  1. 校验参数 需要登录 文章id不能null  操作类型 0 或 1
        if (dto == null){
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID);
        }
        if (dto.getArticleId() == null){
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"文章id不能为空");
        }
        if (dto.getOperation() != 0 && dto.getOperation() != 1){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW,"操作方式只能为0或1");
        }
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"当前用户未登录");
        }

        // 2. 根据userId查询行为实体数据
        Query query = Query.query(Criteria.where("entryId").is(user.getId()).and("articleId").is(dto.getArticleId()));
        ApCollection apCollection = mongoTemplate.findOne(query, ApCollection.class);
        if (dto.getOperation() == 0){
            //  如果是收藏操作 判断是否已经收藏
            if (apCollection == null){
                // 如果未收藏 新增收藏行为
                ApCollection collection = new ApCollection();
                collection.setEntryId(user.getId().toString());
                collection.setArticleId(dto.getArticleId());
                collection.setType(dto.getType());
                collection.setCollectionTime(new Date());
                mongoTemplate.save(collection);

                //添加文章收藏发送消息
                UpdateArticleMess mess = new UpdateArticleMess();
                mess.setArticleId(dto.getArticleId());
                mess.setAdd(dto.getOperation() == 0 ? 1 : -1);
                mess.setType(UpdateArticleMess.UpdateArticleType.COLLECTION);
                rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(mess));
                log.info("收藏行为 发送消息 ==>{}",JSON.toJSONString(mess));
                return ResponseResult.okResult(collection);
            }
            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW,"请不要重复收藏文章");
        }
        //  如果是取消收藏操作  删除收藏行为
        mongoTemplate.remove(query,ApCollection.class);
        return ResponseResult.okResult();

    }
}
